Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø10mm bore and 20mm stroke. A single air port drives the pull stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
- BoreØ10 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typePull, single acting
- Rod threadM8×1.0
- ReturnSpring
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB
The AirTAC PTB10X20SCB is a JIS pen-size single-acting pull cylinder. Air entering the single M5x0.8 port retracts the Ø4 mm rod, while an internal spring pushes it back out upon exhaust release. This spring-extend design ensures the rod fails safe in the extended position if air pressure drops. It yields a usable net pull of 23.5 N at 0.5 MPa.
Because pulling acts on the smaller rod-side annular area, this retraction force is lower than the equivalent push cylinder. The slim SUS304 stainless body incorporates a fixed TPU bumper to soften end-of-stroke impacts. Equipped with a built-in piston magnet (-S), it triggers reed or electronic switches, and the CB double clevis allows pivoting mount integration.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull type (spring extend) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Return | Return spring (pull by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod extended; applying air retracts it, and removing air lets the spring push the rod back out. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
Net Pull Force (Ø10mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 23.5 N |
| 0.7 MPa (max) | 36.7 N |
These are the usable pull forces after the return spring is subtracted, taken directly from the AirTAC single-acting thrust table. Minimum operating pressure is set by the spring, so this model needs at least the lower pressure shown to move.
Model Code: Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R | Back cover: R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PSB (single-acting push), PBD (double rod), PBR (front-mount).
Where the Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB Is Used
Hold-Down Clamp
Uses spring pressure to keep a workpiece extended, retracting only when air is applied to release the part.
Belt Tensioner
Maintains steady tension on a belt or wire via the fail-safe extended rod, pulling back to relieve slack on demand.
Retract-to-Open Gate
Spring force keeps a diverting gate closed by default; energizing the port pulls the actuator open momentarily.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB the Right Cylinder?
Size this 10 mm bore carefully by comparing its 23.5 N net pull at 0.5 MPa against adjacent options. Stepping down to the Ø6 yields only 7.1 N, whereas moving up to the Ø12 provides 33.1 N. Plan your setup for a safe working load of roughly 14 N, which accounts for seal friction at 60 percent capacity. Vertically, it can hold or pull about 1.2 kg with a sane 2:1 safety margin.
Remember the internal return spring dictates a minimum 0.2 MPa operating pressure before motion begins. The CB double clevis is ideal for articulating loads, but the slender Ø4 mm rod requires an external guide if facing off-axis forces. Confirm your stroke does not exceed the 60 mm single-acting limit.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe extend on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 0.7 MPa operating pressure.
- check Allow for spring force in the stroke direction.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SCB FAQ
The net pull force is 23.5 N at 0.5 MPa and 36.7 N at the 0.7 MPa maximum. The internal spring requires at least 0.2 MPa to overcome its resistance and initiate rod retraction.
The -S denotes a built-in piston magnet for reed or electronic switches. Cushioning relies on a fixed TPU bumper that decelerates the last few millimeters; meter-out the exhaust if moving real tooling mass at higher speeds.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC PTB Pen-Size Cylinders
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